Analysis of the galaxy size versus stellar mass relation
The scatter in the galaxy size versus stellar mass (M ⋆) relation gets largely reduced when, rather than the half-mass radius R e, the size at a fixed surface density is used. Here, we address why this happens. We show how a reduction is to be expected because any two galaxies with the same M ⋆ have at least one radius with identical surface
Sánchez Almeida, J.
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4
2020